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reg_alloc: Explicitly specify GPR and XMM order

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This allows each backend to modify what registers they want to use and their preferred orderings
This commit is contained in:
MerryMage 2020-04-08 13:19:26 +01:00
parent c232ad7971
commit 49fcfe040c
7 changed files with 62 additions and 42 deletions
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4
src/backend/x64/emit_x64.cpp
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@ -89,7 +89,7 @@ void EmitX64::EmitPushRSB(EmitContext& ctx, IR::Inst* inst) {
ASSERT(args[0].IsImmediate());
const u64 unique_hash_of_target = args[0].GetImmediateU64();
ctx.reg_alloc.ScratchGpr({HostLoc::RCX});
ctx.reg_alloc.ScratchGpr(HostLoc::RCX);
const Xbyak::Reg64 loc_desc_reg = ctx.reg_alloc.ScratchGpr();
const Xbyak::Reg64 index_reg = ctx.reg_alloc.ScratchGpr();
@ -135,7 +135,7 @@ void EmitX64::EmitGetNZCVFromOp(EmitContext& ctx, IR::Inst* inst) {
}
}();
const Xbyak::Reg64 nzcv = ctx.reg_alloc.ScratchGpr({HostLoc::RAX});
const Xbyak::Reg64 nzcv = ctx.reg_alloc.ScratchGpr(HostLoc::RAX);
const Xbyak::Reg value = ctx.reg_alloc.UseGpr(args[0]).changeBit(bitsize);
code.cmp(value, 0);
code.lahf();